Submarine



Feb. 2, 1926. 1,571,833

'. V. DE FEO SUBMARINE Filed March 1; 1924 Patented Feb. 2, 1926. c

UNITED STATES PATENT OFFICE.

vmonnzo be P110, or SPEZIA, ITALY, Assrenoa' ro'socInrA GIORGIO, or srnzra, ITALY.

ANONIMA ANSALDO-SAN SUBMARINE. V

vApplication fil ed March 1, 1924. Serial No. 696,326.

To all 'wliomit may concern.

Be it'knOwnthat I, Vmo-ENzo DE F120,-

commander, a citizen of the Kingdom of Italy, residing at Spezia, Italy, have invented certain new and useful Improvements in Submarines, of which the following is a full, clear, and exact specification.

My invention relates to submarines, and has for its object a novel construction of submarines embodying considerable constructional and operative advantages.

According to my invention, I substantially divide the submarine in three parts, of which I make the central one in circular cross section throughout its length, as the resistant body of the submarine, while the end portions are of varying curvature in cross section, to suit the navigation requirements. The sides of said end portions are suitably connected to the periphery of the circular middle portion. According to my invention I arrange within the said mixtilineal nonresistant end portions the water-ballast tanks, in some or all of which may be placed torpedo tubes, while the propelling engines and all main control devices are situated within the resisthnt central body.

I am aware that submarines have previously been proposed in which the hull consists of a central resistant portion of circular cross section and end portions of a form appropriate for navigation which act as water ballast chambers, but the present invention diflers from these known arrangements in the division of each end portion into two or more compartments, which add to the safety of the vessel in case of collision or other accident, and act as ballast tanks and also for housing the torpedo tubes.

In the annexed drawing, diagrammatically showing an embodiment of my invention, Fig. 1 is a longitudinal sectional view, Fig. 2 is a plan view made at the flotation line, while Figs. 3, 4, 5, 6 and 7 are cross sections made with planes III, IV, V,'VI,

VII of Figs. 1 and 2, respectively; in, Figs. 4, 5, 6, some additional parts externally of the resistant body are taken away for the sake of simplicity. As shown in the drawings, the compartments A, B, and G, H, situated respectively at the stern and bow ends of the submarine, form chambers containing the whole of the water-ballast su ply, and are formed as a light thin plate 111.

The proper body. of the submarine, confined to the'middle portion thereof, consists of compartments C, D, E, F, of circular shape in cross section, made of thicker material, and being thereby resistant to any desired or required external pressure.

As particularly shown in Fig. 1, the waterballast-tanks of the submarine according to my invention act as stern (A, B) and bow (G, H) platings of the central resistant body of the submarine, and are made in a construction which does not necessarily be re sistant to pressure, thus considerably facilitating their manufacture, reducing costs, and improving navigation.

The torpedo-tubes L are situated beneath the flotation'line, substantially within the compartmentsB and G; they are symmetrically arranged at both sides, inclined to the longitudinal central plane, and project from the compartments G and F of the resistant body.

IVithin the compartment C a portion M of the storage battery is arranged. An oil tank N, is provided directly beneath the battery chamber, adapted to contain a portion of the fuel supply. Substantially symmetrical to the compartment 0 is provided the compartment F containing the remaining storage battery M beneath which the further oil tank N is arranged. By this arrangement the oil tanks will occupy the lowermost place of the respective compartments.

.The main propelling electric engines, the thrust and coupling bearings, and the like, are arrangedwithin the lower portion of the compartment D while the lines of shafting and accessories, as well as all of the apparatus and appliances as required by submerged navigation, may be arranged also in the lower portion thereof.

The compartment E contains the internal combustion engines, and relative couplings and accessories. I

What I claim as my invention is:

1'. A submarine comprising a central resistant body and non-resistant end portions acting as water-ballast tanks, two or more compartments in said end portions, torpedo tubes arranged in some or all of said compartments, said torpedo tubes being inclined to the central longitudinal plane and projecting into said central resistant body.

2. A submarine having a central resistant 0 body divided sul'isi'imliull into four distinct compartments b means oi? cross lliulklieads, the fore and art compartments being each divided horizontally into upper and lower portions, storage batteries Within each of said upper portions. and oil tnnl's arranged beneath said batteries in the said lowermost portions of the fore and aft compartments.

A submarine having a central resistant body transversely divided into four coinpertnients, oil tank and storage batteries in the fore and aft compartments, one or the central C(llllimllfll'ltil'ltffl horizontally divided to form upper and lower chambers, main electric propelling engines with their con ilings arranged in the lower one of said chambers, the line of Slljl'l ng' extending through said lower chamber, and internal combustion engines Willi accessories arranged in the other of seid central oompartniente.

In witness whereof, I have hereunto signed n 1y name.

VINOENZO me, 

